//bundle.js
 
 
var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
// Global Crypto object
var Crypto = {};
 
// Crypto utilities
var util = Crypto.util = {
 
    // Bit-wise rotate left
    rotl: function (n, b) {
        return (n << b) | (n >>> (32 - b));
    },
 
    // Bit-wise rotate right
    rotr: function (n, b) {
        return (n << (32 - b)) | (n >>> b);
    },
 
    // Swap big-endian to little-endian and vice versa
    endian: function (n) {
 
        // If number given, swap endian
        if (n.constructor == Number) {
            return util.rotl(n,  8) & 0x00FF00FF |
                   util.rotl(n, 24) & 0xFF00FF00;
        }
 
        // Else, assume array and swap all items
        for (var i = 0; i < n.length; i++)
            n[i] = util.endian(n[i]);
        return n;
 
    },
 
    // Generate an array of any length of random bytes
    randomBytes: function (n) {
        for (var bytes = []; n > 0; n--)
            bytes.push(Math.floor(Math.random() * 256));
        return bytes;
    },
 
    // Convert a string to a byte array
    stringToBytes: function (str) {
        var bytes = [];
        for (var i = 0; i < str.length; i++)
            bytes.push(str.charCodeAt(i));
        return bytes;
    },
 
    // Convert a byte array to a string
    bytesToString: function (bytes) {
        var str = [];
        for (var i = 0; i < bytes.length; i++)
            str.push(String.fromCharCode(bytes[i]));
        return str.join("");
    },
 
    // Convert a string to big-endian 32-bit words
    stringToWords: function (str) {
        var words = [];
        for (var c = 0, b = 0; c < str.length; c++, b += 8)
            words[b >>> 5] |= str.charCodeAt(c) << (24 - b % 32);
        return words;
    },
 
    // Convert a byte array to big-endian 32-bits words
    bytesToWords: function (bytes) {
        var words = [];
        for (var i = 0, b = 0; i < bytes.length; i++, b += 8)
            words[b >>> 5] |= bytes[i] << (24 - b % 32);
        return words;
    },
 
    // Convert big-endian 32-bit words to a byte array
    wordsToBytes: function (words) {
        var bytes = [];
        for (var b = 0; b < words.length * 32; b += 8)
            bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
        return bytes;
    },
 
    // Convert a byte array to a hex string
    bytesToHex: function (bytes) {
        var hex = [];
        for (var i = 0; i < bytes.length; i++) {
            hex.push((bytes[i] >>> 4).toString(16));
            hex.push((bytes[i] & 0xF).toString(16));
        }
        return hex.join("");
    },
 
    // Convert a hex string to a byte array
    hexToBytes: function (hex) {
        var bytes = [];
        for (var c = 0; c < hex.length; c += 2)
            bytes.push(parseInt(hex.substr(c, 2), 16));
        return bytes;
    },
 
    // Convert a byte array to a base-64 string
    bytesToBase64: function (bytes) {
 
        // Use browser-native function if it exists
        // if (typeof btoa == "function") return btoa(util.bytesToString(bytes));
 
        var base64 = [],
            overflow;
 
        for (var i = 0; i < bytes.length; i++) {
            switch (i % 3) {
                case 0:
                    base64.push(base64map.charAt(bytes[i] >>> 2));
                    overflow = (bytes[i] & 0x3) << 4;
                    break;
                case 1:
                    base64.push(base64map.charAt(overflow | (bytes[i] >>> 4)));
                    overflow = (bytes[i] & 0xF) << 2;
                    break;
                case 2:
                    base64.push(base64map.charAt(overflow | (bytes[i] >>> 6)));
                    base64.push(base64map.charAt(bytes[i] & 0x3F));
                    overflow = -1;
            }
        }
 
        // Encode overflow bits, if there are any
        if (overflow != undefined && overflow != -1)
            base64.push(base64map.charAt(overflow));
 
        // Add padding
        while (base64.length % 4 != 0) base64.push("=");
 
        return base64.join("");
 
    },
 
    // Convert a base-64 string to a byte array
    base64ToBytes: function (base64) {
 
        // Use browser-native function if it exists
        if (typeof atob == "function") return util.stringToBytes(atob(base64));
 
        // Remove non-base-64 characters
        base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");
 
        var bytes = [];
 
        for (var i = 0; i < base64.length; i++) {
            switch (i % 4) {
                case 1:
                    bytes.push((base64map.indexOf(base64.charAt(i - 1)) << 2) |
                               (base64map.indexOf(base64.charAt(i)) >>> 4));
                    break;
                case 2:
                    bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0xF) << 4) |
                               (base64map.indexOf(base64.charAt(i)) >>> 2));
                    break;
                case 3:
                    bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) |
                               (base64map.indexOf(base64.charAt(i))));
                    break;
            }
        }
 
        return bytes;
 
    }
 
};
 
// Crypto mode namespace
Crypto.mode = {};
 
//hmac
 
var util = Crypto.util;
 
Crypto.HMAC = function (hasher, message, key, options) {
 
    // Allow arbitrary length keys
    key = key.length > hasher._blocksize * 4 ?
          hasher(key, { asBytes: true }) :
          util.stringToBytes(key);
 
    // XOR keys with pad constants
    var okey = key,
        ikey = key.slice(0);
    for (var i = 0; i < hasher._blocksize * 4; i++) {
        okey[i] ^= 0x5C;
        ikey[i] ^= 0x36;
    }
 
    var hmacbytes = hasher(util.bytesToString(okey) +
                           hasher(util.bytesToString(ikey) + message, { asString: true }),
                           { asBytes: true });
    return options && options.asBytes ? hmacbytes :
           options && options.asString ? util.bytesToString(hmacbytes) :
           util.bytesToHex(hmacbytes);
 
};
 
//sha1
 
// Shortcut
var util = Crypto.util;
 
// Public API
var SHA1 = Crypto.SHA1 = function (message, options) {
    var digestbytes = util.wordsToBytes(SHA1._sha1(message));
    return options && options.asBytes ? digestbytes :
           options && options.asString ? util.bytesToString(digestbytes) :
           util.bytesToHex(digestbytes);
};
 
// The core
SHA1._sha1 = function (message) {
 
    var m  = util.stringToWords(message),
        l  = message.length * 8,
        w  =  [],
        H0 =  1732584193,
        H1 = -271733879,
        H2 = -1732584194,
        H3 =  271733878,
        H4 = -1009589776;
 
    // Padding
    m[l >> 5] |= 0x80 << (24 - l % 32);
    m[((l + 64 >>> 9) << 4) + 15] = l;
 
    for (var i = 0; i < m.length; i += 16) {
 
        var a = H0,
            b = H1,
            c = H2,
            d = H3,
            e = H4;
 
        for (var j = 0; j < 80; j++) {
 
            if (j < 16) w[j] = m[i + j];
            else {
                var n = w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16];
                w[j] = (n << 1) | (n >>> 31);
            }
 
            var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + (
                     j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 :
                     j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 :
                     j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 :
                              (H1 ^ H2 ^ H3) - 899497514);
 
            H4 =  H3;
            H3 =  H2;
            H2 = (H1 << 30) | (H1 >>> 2);
            H1 =  H0;
            H0 =  t;
 
        }
 
        H0 += a;
        H1 += b;
        H2 += c;
        H3 += d;
        H4 += e;
 
    }
 
    return [H0, H1, H2, H3, H4];
 
};
 
// Package private blocksize
SHA1._blocksize = 16;
 
//base64
 
    var Base64 = {
 
        // private property
        _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 
        // public method for encoding
        encode : function (input) {
            var output = "";
            var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
            var i = 0;
 
            input = Base64._utf8_encode(input);
 
            while (i < input.length) {
 
                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);
 
                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;
 
                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }
 
                output = output +
                this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
                this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
 
            }
 
            return output;
        },
 
        // public method for decoding
        decode : function (input) {
            var output = "";
            var chr1, chr2, chr3;
            var enc1, enc2, enc3, enc4;
            var i = 0;
 
            input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
            while (i < input.length) {
 
                enc1 = this._keyStr.indexOf(input.charAt(i++));
                enc2 = this._keyStr.indexOf(input.charAt(i++));
                enc3 = this._keyStr.indexOf(input.charAt(i++));
                enc4 = this._keyStr.indexOf(input.charAt(i++));
 
                chr1 = (enc1 << 2) | (enc2 >> 4);
                chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
                chr3 = ((enc3 & 3) << 6) | enc4;
 
                output = output + String.fromCharCode(chr1);
 
                if (enc3 != 64) {
                    output = output + String.fromCharCode(chr2);
                }
                if (enc4 != 64) {
                    output = output + String.fromCharCode(chr3);
                }
 
            }
 
            output = Base64._utf8_decode(output);
 
            return output;
 
        },
 
        // private method for UTF-8 encoding
        _utf8_encode : function (string) {
            string = string.replace(/\r\n/g,"\n");
            var utftext = "";
 
            for (var n = 0; n < string.length; n++) {
 
                var c = string.charCodeAt(n);
 
                if (c < 128) {
                    utftext += String.fromCharCode(c);
                }
                else if((c > 127) && (c < 2048)) {
                    utftext += String.fromCharCode((c >> 6) | 192);
                    utftext += String.fromCharCode((c & 63) | 128);
                }
                else {
                    utftext += String.fromCharCode((c >> 12) | 224);
                    utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                    utftext += String.fromCharCode((c & 63) | 128);
                }
 
            }
 
            return utftext;
        },
 
        // private method for UTF-8 decoding
        _utf8_decode : function (utftext) {
            var string = "";
            var i = 0;
            var c = c1 = c2 = 0;
 
            while ( i < utftext.length ) {
 
                c = utftext.charCodeAt(i);
 
                if (c < 128) {
                    string += String.fromCharCode(c);
                    i++;
                }
                else if((c > 191) && (c < 224)) {
                    c2 = utftext.charCodeAt(i+1);
                    string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                    i += 2;
                }
                else {
                    c2 = utftext.charCodeAt(i+1);
                    c3 = utftext.charCodeAt(i+2);
                    string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                    i += 3;
                }
 
            }
 
            return string;
        }
 
    }
 
export {Crypto, Base64}